Alert archive / South Dakota / Mesoscale Discussions in 2016

Mesoscale Discussion 1519

August 10, 201622 counties in Minnesota; 13 counties in North Dakota; 24 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Aug 10, 2016, 10:50 PM CDT for 22 counties in Minnesota; 13 counties in North Dakota; 24 counties in South Dakota. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Aug 10, 2016, 10:50 PM CDT (03:50 UTC)
Expired
Aug 11, 2016, 12:15 AM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 59 counties

Becker County, MN, Big Stone County, MN, Chippewa County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Lac qui Parle County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, Nelson County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Walsh County, ND, Aurora County, SD, Beadle County, SD, Brookings County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hyde County, SD, Jerauld County, SD, Kingsbury County, SD, Marshall County, SD, McPherson County, SD, Miner County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 121 km from the middle of the area, began a volume at 03:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.8 hours before the alert went out and 173 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2016-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 984 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2016-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 347 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
984 J/kg
Mixed-layer CIN
-270 J/kg
Mixed-layer LCL
1716 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
347 m²/s²
0-3 km storm-relative helicity
497 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.9

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 8:00 PM CDTSevere Thunderstorm WatchSPCBecker, Big Stone, Clay, Clearwater, Douglas, Grant and 15 more6 hr
Aug 10, 8:54 PM CDTMesoscale DiscussionSPCAdams, Benson, Billings, Bottineau, Burke, Burleigh and 31 more66 min
Aug 11, 12:37 PM CDTMesoscale DiscussionSPCBon Homme, Charles Mix, Clay, Union, Yankton2 hr
Aug 11, 2:35 PM CDTMesoscale DiscussionSPCCuster, Fall River, Lawrence, Oglala Lakota, Pennington2 hr
Aug 11, 3:26 PM CDTMesoscale DiscussionSPCClay, Union2 hr
Aug 11, 3:55 PM CDTSevere Thunderstorm WatchSPCClay, Union, Yankton7 hr
Aug 11, 5:56 PM CDTMesoscale DiscussionSPCBennett, Haakon, Hughes, Jackson, Jones, Mellette and 6 more94 min
Aug 11, 6:17 PM CDTMesoscale DiscussionSPCClay, Union, Yankton58 min
Aug 11, 6:29 PM CDTSevere Thunderstorm WatchSPCBennett, Gregory, Jackson, Jones, Lyman, Mellette and 2 more7 hr

Nearby

Mesoscale Discussions in South Dakota, 2016Mesoscale Discussions in Minnesota, 2016Mesoscale Discussions in North Dakota, 2016Every mesoscale discussion in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.